6 Mode SwitchingMore switching modes allow you to better adapt to the surrounding environment,Both the white front light and red rear light support 6 light modes: Constant high brightness , Constant medium brightness , Constant low brightness , slight flashing , medium flashing , Stroboscopic , you can switch by simply clicking the button, double clicking to flashing mode .Giving you a broader viewen to sure that you can see the road ,and protect your safety. Waterproof & Light WeightBe made of IPX5 waterproof material,meanwhile, the USB charging port are also made of silica gel material, which has strong anti-seepage ability, can well protect the interior of the lamp, and can extend the service life of the lamp. In addition, it weighs only 20g for each and only 33*26mm in size which is lighter and smaller than other lights, to avoid being stolen , you can disassemble easily after parking and carry around Waterproof & Light WeightBe made of IPX5 waterproof material,meanwhile, the USB charging port are also made of silica gel material, which has strong anti-seepage ability, can well protect the interior of the lamp, and can extend the service life of the lamp. In addition, it weighs only 20g for each and only 33*26mm in size which is lighter and smaller than other lights, to avoid being stolen , you can disassemble easily after parking and carry around Easy and Safely InstallationMade of highly elasticity flexible rubber band which is very flexible and can be easily stretched,you can loosen and fasten easily without any tools.It can firmly fix the lamp in the frame and the rear of the car which is suitable for all types of bicycles ,and it's perfectly use for kids and every rider.